1267 lines
29 KiB
Raku
1267 lines
29 KiB
Raku
#! /usr/bin/env perl
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# Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# ====================================================================
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# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
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# project.
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# ====================================================================
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#
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# March, June 2010
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#
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# The module implements "4-bit" GCM GHASH function and underlying
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# single multiplication operation in GF(2^128). "4-bit" means that
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# it uses 256 bytes per-key table [+128 bytes shared table]. GHASH
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# function features so called "528B" variant utilizing additional
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# 256+16 bytes of per-key storage [+512 bytes shared table].
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# Performance results are for this streamed GHASH subroutine and are
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# expressed in cycles per processed byte, less is better:
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#
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# gcc 3.4.x(*) assembler
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#
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# P4 28.6 14.0 +100%
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# Opteron 19.3 7.7 +150%
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# Core2 17.8 8.1(**) +120%
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# Atom 31.6 16.8 +88%
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# VIA Nano 21.8 10.1 +115%
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#
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# (*) comparison is not completely fair, because C results are
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# for vanilla "256B" implementation, while assembler results
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# are for "528B";-)
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# (**) it's mystery [to me] why Core2 result is not same as for
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# Opteron;
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# May 2010
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#
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# Add PCLMULQDQ version performing at 2.02 cycles per processed byte.
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# See ghash-x86.pl for background information and details about coding
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# techniques.
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#
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# Special thanks to David Woodhouse for providing access to a
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# Westmere-based system on behalf of Intel Open Source Technology Centre.
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# December 2012
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#
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# Overhaul: aggregate Karatsuba post-processing, improve ILP in
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# reduction_alg9, increase reduction aggregate factor to 4x. As for
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# the latter. ghash-x86.pl discusses that it makes lesser sense to
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# increase aggregate factor. Then why increase here? Critical path
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# consists of 3 independent pclmulqdq instructions, Karatsuba post-
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# processing and reduction. "On top" of this we lay down aggregated
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# multiplication operations, triplets of independent pclmulqdq's. As
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# issue rate for pclmulqdq is limited, it makes lesser sense to
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# aggregate more multiplications than it takes to perform remaining
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# non-multiplication operations. 2x is near-optimal coefficient for
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# contemporary Intel CPUs (therefore modest improvement coefficient),
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# but not for Bulldozer. Latter is because logical SIMD operations
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# are twice as slow in comparison to Intel, so that critical path is
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# longer. A CPU with higher pclmulqdq issue rate would also benefit
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# from higher aggregate factor...
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#
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# Westmere 1.78(+13%)
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# Sandy Bridge 1.80(+8%)
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# Ivy Bridge 1.80(+7%)
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# Haswell 0.55(+93%) (if system doesn't support AVX)
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# Broadwell 0.45(+110%)(if system doesn't support AVX)
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# Skylake 0.44(+110%)(if system doesn't support AVX)
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# Bulldozer 1.49(+27%)
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# Silvermont 2.88(+13%)
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# Knights L 2.12(-) (if system doesn't support AVX)
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# Goldmont 1.08(+24%)
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# March 2013
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#
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# ... 8x aggregate factor AVX code path is using reduction algorithm
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# suggested by Shay Gueron[1]. Even though contemporary AVX-capable
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# CPUs such as Sandy and Ivy Bridge can execute it, the code performs
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# sub-optimally in comparison to above mentioned version. But thanks
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# to Ilya Albrekht and Max Locktyukhin of Intel Corp. we knew that
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# it performs in 0.41 cycles per byte on Haswell processor, in
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# 0.29 on Broadwell, and in 0.36 on Skylake.
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#
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# Knights Landing achieves 1.09 cpb.
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#
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# [1] http://rt.openssl.org/Ticket/Display.html?id=2900&user=guest&pass=guest
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# This file was patched in BoringSSL to remove the variable-time 4-bit
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# implementation.
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$flavour = shift;
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$output = shift;
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if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
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$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
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$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
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( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
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( $xlate="${dir}../../../perlasm/x86_64-xlate.pl" and -f $xlate) or
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die "can't locate x86_64-xlate.pl";
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# See the notes about |$avx| in aesni-gcm-x86_64.pl; otherwise tags will be
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# computed incorrectly.
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#
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# In upstream, this is controlled by shelling out to the compiler to check
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# versions, but BoringSSL is intended to be used with pre-generated perlasm
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# output, so this isn't useful anyway.
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$avx = 1;
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open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
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*STDOUT=*OUT;
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$do4xaggr=1;
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$code=<<___;
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.text
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___
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######################################################################
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# PCLMULQDQ version.
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@_4args=$win64? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
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("%rdi","%rsi","%rdx","%rcx"); # Unix order
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($Xi,$Xhi)=("%xmm0","%xmm1"); $Hkey="%xmm2";
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($T1,$T2,$T3)=("%xmm3","%xmm4","%xmm5");
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sub clmul64x64_T2 { # minimal register pressure
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my ($Xhi,$Xi,$Hkey,$HK)=@_;
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if (!defined($HK)) { $HK = $T2;
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$code.=<<___;
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movdqa $Xi,$Xhi #
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pshufd \$0b01001110,$Xi,$T1
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pshufd \$0b01001110,$Hkey,$T2
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pxor $Xi,$T1 #
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pxor $Hkey,$T2
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___
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} else {
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$code.=<<___;
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movdqa $Xi,$Xhi #
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pshufd \$0b01001110,$Xi,$T1
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pxor $Xi,$T1 #
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___
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}
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$code.=<<___;
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pclmulqdq \$0x00,$Hkey,$Xi #######
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pclmulqdq \$0x11,$Hkey,$Xhi #######
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pclmulqdq \$0x00,$HK,$T1 #######
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pxor $Xi,$T1 #
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pxor $Xhi,$T1 #
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movdqa $T1,$T2 #
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psrldq \$8,$T1
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pslldq \$8,$T2 #
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pxor $T1,$Xhi
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pxor $T2,$Xi #
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___
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}
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sub reduction_alg9 { # 17/11 times faster than Intel version
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my ($Xhi,$Xi) = @_;
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$code.=<<___;
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# 1st phase
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movdqa $Xi,$T2 #
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movdqa $Xi,$T1
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psllq \$5,$Xi
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pxor $Xi,$T1 #
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psllq \$1,$Xi
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pxor $T1,$Xi #
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psllq \$57,$Xi #
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movdqa $Xi,$T1 #
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pslldq \$8,$Xi
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psrldq \$8,$T1 #
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pxor $T2,$Xi
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pxor $T1,$Xhi #
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# 2nd phase
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movdqa $Xi,$T2
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psrlq \$1,$Xi
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pxor $T2,$Xhi #
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pxor $Xi,$T2
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psrlq \$5,$Xi
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pxor $T2,$Xi #
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psrlq \$1,$Xi #
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pxor $Xhi,$Xi #
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___
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}
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{ my ($Htbl,$Xip)=@_4args;
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my $HK="%xmm6";
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$code.=<<___;
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.globl gcm_init_clmul
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.type gcm_init_clmul,\@abi-omnipotent
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.align 16
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gcm_init_clmul:
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.cfi_startproc
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.seh_startproc
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_CET_ENDBR
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.L_init_clmul:
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___
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$code.=<<___ if ($win64);
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sub \$0x18,%rsp
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.seh_stackalloc 0x18
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movaps %xmm6,(%rsp)
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.seh_savexmm %xmm6, 0
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.seh_endprologue
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___
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$code.=<<___;
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movdqu ($Xip),$Hkey
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pshufd \$0b01001110,$Hkey,$Hkey # dword swap
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# <<1 twist
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pshufd \$0b11111111,$Hkey,$T2 # broadcast uppermost dword
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movdqa $Hkey,$T1
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psllq \$1,$Hkey
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pxor $T3,$T3 #
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psrlq \$63,$T1
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pcmpgtd $T2,$T3 # broadcast carry bit
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pslldq \$8,$T1
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por $T1,$Hkey # H<<=1
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# magic reduction
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pand .L0x1c2_polynomial(%rip),$T3
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pxor $T3,$Hkey # if(carry) H^=0x1c2_polynomial
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# calculate H^2
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pshufd \$0b01001110,$Hkey,$HK
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movdqa $Hkey,$Xi
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pxor $Hkey,$HK
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___
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&clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK);
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&reduction_alg9 ($Xhi,$Xi);
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$code.=<<___;
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pshufd \$0b01001110,$Hkey,$T1
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pshufd \$0b01001110,$Xi,$T2
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pxor $Hkey,$T1 # Karatsuba pre-processing
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movdqu $Hkey,0x00($Htbl) # save H
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pxor $Xi,$T2 # Karatsuba pre-processing
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movdqu $Xi,0x10($Htbl) # save H^2
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palignr \$8,$T1,$T2 # low part is H.lo^H.hi...
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movdqu $T2,0x20($Htbl) # save Karatsuba "salt"
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___
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if ($do4xaggr) {
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&clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK); # H^3
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&reduction_alg9 ($Xhi,$Xi);
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$code.=<<___;
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movdqa $Xi,$T3
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___
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&clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK); # H^4
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&reduction_alg9 ($Xhi,$Xi);
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$code.=<<___;
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pshufd \$0b01001110,$T3,$T1
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pshufd \$0b01001110,$Xi,$T2
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pxor $T3,$T1 # Karatsuba pre-processing
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movdqu $T3,0x30($Htbl) # save H^3
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pxor $Xi,$T2 # Karatsuba pre-processing
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movdqu $Xi,0x40($Htbl) # save H^4
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palignr \$8,$T1,$T2 # low part is H^3.lo^H^3.hi...
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movdqu $T2,0x50($Htbl) # save Karatsuba "salt"
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___
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}
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$code.=<<___ if ($win64);
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movaps (%rsp),%xmm6
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lea 0x18(%rsp),%rsp
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___
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$code.=<<___;
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ret
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.cfi_endproc
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.seh_endproc
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.size gcm_init_clmul,.-gcm_init_clmul
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___
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}
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{ my ($Xip,$Htbl,$inp,$len)=@_4args;
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my ($Xln,$Xmn,$Xhn,$Hkey2,$HK) = map("%xmm$_",(3..7));
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my ($T1,$T2,$T3)=map("%xmm$_",(8..10));
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$code.=<<___;
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.globl gcm_ghash_clmul
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.type gcm_ghash_clmul,\@abi-omnipotent
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.align 32
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gcm_ghash_clmul:
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.cfi_startproc
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.seh_startproc
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_CET_ENDBR
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.L_ghash_clmul:
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___
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$code.=<<___ if ($win64);
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lea -0x88(%rsp),%rax
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lea -0x20(%rax),%rsp
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.seh_stackalloc 0x20+0x88
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movaps %xmm6,-0x20(%rax)
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.seh_savexmm %xmm6, 0x20-0x20
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movaps %xmm7,-0x10(%rax)
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.seh_savexmm %xmm7, 0x20-0x10
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movaps %xmm8,0(%rax)
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.seh_savexmm %xmm8, 0x20+0
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movaps %xmm9,0x10(%rax)
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.seh_savexmm %xmm9, 0x20+0x10
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movaps %xmm10,0x20(%rax)
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.seh_savexmm %xmm10, 0x20+0x20
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movaps %xmm11,0x30(%rax)
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.seh_savexmm %xmm11, 0x20+0x30
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movaps %xmm12,0x40(%rax)
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.seh_savexmm %xmm12, 0x20+0x40
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movaps %xmm13,0x50(%rax)
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.seh_savexmm %xmm13, 0x20+0x50
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movaps %xmm14,0x60(%rax)
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.seh_savexmm %xmm14, 0x20+0x60
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movaps %xmm15,0x70(%rax)
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.seh_savexmm %xmm15, 0x20+0x70
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.seh_endprologue
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___
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$code.=<<___;
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movdqa .Lbswap_mask(%rip),$T3
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movdqu ($Xip),$Xi
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movdqu ($Htbl),$Hkey
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movdqu 0x20($Htbl),$HK
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pshufb $T3,$Xi
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sub \$0x10,$len
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jz .Lodd_tail
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movdqu 0x10($Htbl),$Hkey2
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___
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if ($do4xaggr) {
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my ($Xl,$Xm,$Xh,$Hkey3,$Hkey4)=map("%xmm$_",(11..15));
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$code.=<<___;
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cmp \$0x30,$len
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jb .Lskip4x
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sub \$0x30,$len
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mov \$0xA040608020C0E000,%rax # ((7..0)·0xE0)&0xff
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movdqu 0x30($Htbl),$Hkey3
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movdqu 0x40($Htbl),$Hkey4
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#######
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# Xi+4 =[(H*Ii+3) + (H^2*Ii+2) + (H^3*Ii+1) + H^4*(Ii+Xi)] mod P
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#
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movdqu 0x30($inp),$Xln
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movdqu 0x20($inp),$Xl
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pshufb $T3,$Xln
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pshufb $T3,$Xl
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movdqa $Xln,$Xhn
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pshufd \$0b01001110,$Xln,$Xmn
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pxor $Xln,$Xmn
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pclmulqdq \$0x00,$Hkey,$Xln
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pclmulqdq \$0x11,$Hkey,$Xhn
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pclmulqdq \$0x00,$HK,$Xmn
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movdqa $Xl,$Xh
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pshufd \$0b01001110,$Xl,$Xm
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pxor $Xl,$Xm
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pclmulqdq \$0x00,$Hkey2,$Xl
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pclmulqdq \$0x11,$Hkey2,$Xh
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pclmulqdq \$0x10,$HK,$Xm
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xorps $Xl,$Xln
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xorps $Xh,$Xhn
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movups 0x50($Htbl),$HK
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xorps $Xm,$Xmn
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movdqu 0x10($inp),$Xl
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movdqu 0($inp),$T1
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pshufb $T3,$Xl
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pshufb $T3,$T1
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movdqa $Xl,$Xh
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pshufd \$0b01001110,$Xl,$Xm
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pxor $T1,$Xi
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pxor $Xl,$Xm
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pclmulqdq \$0x00,$Hkey3,$Xl
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movdqa $Xi,$Xhi
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pshufd \$0b01001110,$Xi,$T1
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pxor $Xi,$T1
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pclmulqdq \$0x11,$Hkey3,$Xh
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pclmulqdq \$0x00,$HK,$Xm
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xorps $Xl,$Xln
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xorps $Xh,$Xhn
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lea 0x40($inp),$inp
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sub \$0x40,$len
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jc .Ltail4x
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jmp .Lmod4_loop
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.align 32
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.Lmod4_loop:
|
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pclmulqdq \$0x00,$Hkey4,$Xi
|
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xorps $Xm,$Xmn
|
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movdqu 0x30($inp),$Xl
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pshufb $T3,$Xl
|
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pclmulqdq \$0x11,$Hkey4,$Xhi
|
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xorps $Xln,$Xi
|
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movdqu 0x20($inp),$Xln
|
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movdqa $Xl,$Xh
|
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pclmulqdq \$0x10,$HK,$T1
|
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pshufd \$0b01001110,$Xl,$Xm
|
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xorps $Xhn,$Xhi
|
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pxor $Xl,$Xm
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pshufb $T3,$Xln
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movups 0x20($Htbl),$HK
|
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xorps $Xmn,$T1
|
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pclmulqdq \$0x00,$Hkey,$Xl
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pshufd \$0b01001110,$Xln,$Xmn
|
||
|
||
pxor $Xi,$T1 # aggregated Karatsuba post-processing
|
||
movdqa $Xln,$Xhn
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pxor $Xhi,$T1 #
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pxor $Xln,$Xmn
|
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movdqa $T1,$T2 #
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pclmulqdq \$0x11,$Hkey,$Xh
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pslldq \$8,$T1
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psrldq \$8,$T2 #
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pxor $T1,$Xi
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movdqa .L7_mask(%rip),$T1
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pxor $T2,$Xhi #
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movq %rax,$T2
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pand $Xi,$T1 # 1st phase
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pshufb $T1,$T2 #
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pxor $Xi,$T2 #
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pclmulqdq \$0x00,$HK,$Xm
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psllq \$57,$T2 #
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movdqa $T2,$T1 #
|
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pslldq \$8,$T2
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pclmulqdq \$0x00,$Hkey2,$Xln
|
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psrldq \$8,$T1 #
|
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pxor $T2,$Xi
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pxor $T1,$Xhi #
|
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movdqu 0($inp),$T1
|
||
|
||
movdqa $Xi,$T2 # 2nd phase
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||
psrlq \$1,$Xi
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pclmulqdq \$0x11,$Hkey2,$Xhn
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xorps $Xl,$Xln
|
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movdqu 0x10($inp),$Xl
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pshufb $T3,$Xl
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pclmulqdq \$0x10,$HK,$Xmn
|
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xorps $Xh,$Xhn
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movups 0x50($Htbl),$HK
|
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pshufb $T3,$T1
|
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pxor $T2,$Xhi #
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pxor $Xi,$T2
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psrlq \$5,$Xi
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||
|
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movdqa $Xl,$Xh
|
||
pxor $Xm,$Xmn
|
||
pshufd \$0b01001110,$Xl,$Xm
|
||
pxor $T2,$Xi #
|
||
pxor $T1,$Xhi
|
||
pxor $Xl,$Xm
|
||
pclmulqdq \$0x00,$Hkey3,$Xl
|
||
psrlq \$1,$Xi #
|
||
pxor $Xhi,$Xi #
|
||
movdqa $Xi,$Xhi
|
||
pclmulqdq \$0x11,$Hkey3,$Xh
|
||
xorps $Xl,$Xln
|
||
pshufd \$0b01001110,$Xi,$T1
|
||
pxor $Xi,$T1
|
||
|
||
pclmulqdq \$0x00,$HK,$Xm
|
||
xorps $Xh,$Xhn
|
||
|
||
lea 0x40($inp),$inp
|
||
sub \$0x40,$len
|
||
jnc .Lmod4_loop
|
||
|
||
.Ltail4x:
|
||
pclmulqdq \$0x00,$Hkey4,$Xi
|
||
pclmulqdq \$0x11,$Hkey4,$Xhi
|
||
pclmulqdq \$0x10,$HK,$T1
|
||
xorps $Xm,$Xmn
|
||
xorps $Xln,$Xi
|
||
xorps $Xhn,$Xhi
|
||
pxor $Xi,$Xhi # aggregated Karatsuba post-processing
|
||
pxor $Xmn,$T1
|
||
|
||
pxor $Xhi,$T1 #
|
||
pxor $Xi,$Xhi
|
||
|
||
movdqa $T1,$T2 #
|
||
psrldq \$8,$T1
|
||
pslldq \$8,$T2 #
|
||
pxor $T1,$Xhi
|
||
pxor $T2,$Xi #
|
||
___
|
||
&reduction_alg9($Xhi,$Xi);
|
||
$code.=<<___;
|
||
add \$0x40,$len
|
||
jz .Ldone
|
||
movdqu 0x20($Htbl),$HK
|
||
sub \$0x10,$len
|
||
jz .Lodd_tail
|
||
.Lskip4x:
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
#######
|
||
# Xi+2 =[H*(Ii+1 + Xi+1)] mod P =
|
||
# [(H*Ii+1) + (H*Xi+1)] mod P =
|
||
# [(H*Ii+1) + H^2*(Ii+Xi)] mod P
|
||
#
|
||
movdqu ($inp),$T1 # Ii
|
||
movdqu 16($inp),$Xln # Ii+1
|
||
pshufb $T3,$T1
|
||
pshufb $T3,$Xln
|
||
pxor $T1,$Xi # Ii+Xi
|
||
|
||
movdqa $Xln,$Xhn
|
||
pshufd \$0b01001110,$Xln,$Xmn
|
||
pxor $Xln,$Xmn
|
||
pclmulqdq \$0x00,$Hkey,$Xln
|
||
pclmulqdq \$0x11,$Hkey,$Xhn
|
||
pclmulqdq \$0x00,$HK,$Xmn
|
||
|
||
lea 32($inp),$inp # i+=2
|
||
nop
|
||
sub \$0x20,$len
|
||
jbe .Leven_tail
|
||
nop
|
||
jmp .Lmod_loop
|
||
|
||
.align 32
|
||
.Lmod_loop:
|
||
movdqa $Xi,$Xhi
|
||
movdqa $Xmn,$T1
|
||
pshufd \$0b01001110,$Xi,$Xmn #
|
||
pxor $Xi,$Xmn #
|
||
|
||
pclmulqdq \$0x00,$Hkey2,$Xi
|
||
pclmulqdq \$0x11,$Hkey2,$Xhi
|
||
pclmulqdq \$0x10,$HK,$Xmn
|
||
|
||
pxor $Xln,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
|
||
pxor $Xhn,$Xhi
|
||
movdqu ($inp),$T2 # Ii
|
||
pxor $Xi,$T1 # aggregated Karatsuba post-processing
|
||
pshufb $T3,$T2
|
||
movdqu 16($inp),$Xln # Ii+1
|
||
|
||
pxor $Xhi,$T1
|
||
pxor $T2,$Xhi # "Ii+Xi", consume early
|
||
pxor $T1,$Xmn
|
||
pshufb $T3,$Xln
|
||
movdqa $Xmn,$T1 #
|
||
psrldq \$8,$T1
|
||
pslldq \$8,$Xmn #
|
||
pxor $T1,$Xhi
|
||
pxor $Xmn,$Xi #
|
||
|
||
movdqa $Xln,$Xhn #
|
||
|
||
movdqa $Xi,$T2 # 1st phase
|
||
movdqa $Xi,$T1
|
||
psllq \$5,$Xi
|
||
pxor $Xi,$T1 #
|
||
pclmulqdq \$0x00,$Hkey,$Xln #######
|
||
psllq \$1,$Xi
|
||
pxor $T1,$Xi #
|
||
psllq \$57,$Xi #
|
||
movdqa $Xi,$T1 #
|
||
pslldq \$8,$Xi
|
||
psrldq \$8,$T1 #
|
||
pxor $T2,$Xi
|
||
pshufd \$0b01001110,$Xhn,$Xmn
|
||
pxor $T1,$Xhi #
|
||
pxor $Xhn,$Xmn #
|
||
|
||
movdqa $Xi,$T2 # 2nd phase
|
||
psrlq \$1,$Xi
|
||
pclmulqdq \$0x11,$Hkey,$Xhn #######
|
||
pxor $T2,$Xhi #
|
||
pxor $Xi,$T2
|
||
psrlq \$5,$Xi
|
||
pxor $T2,$Xi #
|
||
lea 32($inp),$inp
|
||
psrlq \$1,$Xi #
|
||
pclmulqdq \$0x00,$HK,$Xmn #######
|
||
pxor $Xhi,$Xi #
|
||
|
||
sub \$0x20,$len
|
||
ja .Lmod_loop
|
||
|
||
.Leven_tail:
|
||
movdqa $Xi,$Xhi
|
||
movdqa $Xmn,$T1
|
||
pshufd \$0b01001110,$Xi,$Xmn #
|
||
pxor $Xi,$Xmn #
|
||
|
||
pclmulqdq \$0x00,$Hkey2,$Xi
|
||
pclmulqdq \$0x11,$Hkey2,$Xhi
|
||
pclmulqdq \$0x10,$HK,$Xmn
|
||
|
||
pxor $Xln,$Xi # (H*Ii+1) + H^2*(Ii+Xi)
|
||
pxor $Xhn,$Xhi
|
||
pxor $Xi,$T1
|
||
pxor $Xhi,$T1
|
||
pxor $T1,$Xmn
|
||
movdqa $Xmn,$T1 #
|
||
psrldq \$8,$T1
|
||
pslldq \$8,$Xmn #
|
||
pxor $T1,$Xhi
|
||
pxor $Xmn,$Xi #
|
||
___
|
||
&reduction_alg9 ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
test $len,$len
|
||
jnz .Ldone
|
||
|
||
.Lodd_tail:
|
||
movdqu ($inp),$T1 # Ii
|
||
pshufb $T3,$T1
|
||
pxor $T1,$Xi # Ii+Xi
|
||
___
|
||
&clmul64x64_T2 ($Xhi,$Xi,$Hkey,$HK); # H*(Ii+Xi)
|
||
&reduction_alg9 ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
.Ldone:
|
||
pshufb $T3,$Xi
|
||
movdqu $Xi,($Xip)
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps 0x30(%rsp),%xmm9
|
||
movaps 0x40(%rsp),%xmm10
|
||
movaps 0x50(%rsp),%xmm11
|
||
movaps 0x60(%rsp),%xmm12
|
||
movaps 0x70(%rsp),%xmm13
|
||
movaps 0x80(%rsp),%xmm14
|
||
movaps 0x90(%rsp),%xmm15
|
||
lea 0xa8(%rsp),%rsp
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.cfi_endproc
|
||
.seh_endproc
|
||
.size gcm_ghash_clmul,.-gcm_ghash_clmul
|
||
___
|
||
}
|
||
|
||
$code.=<<___;
|
||
.globl gcm_init_avx
|
||
.type gcm_init_avx,\@abi-omnipotent
|
||
.align 32
|
||
gcm_init_avx:
|
||
.cfi_startproc
|
||
.seh_startproc
|
||
_CET_ENDBR
|
||
___
|
||
if ($avx) {
|
||
my ($Htbl,$Xip)=@_4args;
|
||
my $HK="%xmm6";
|
||
|
||
$code.=<<___ if ($win64);
|
||
sub \$0x18,%rsp
|
||
.seh_stackalloc 0x18
|
||
movaps %xmm6,(%rsp)
|
||
.seh_savexmm %xmm6, 0
|
||
.seh_endprologue
|
||
___
|
||
$code.=<<___;
|
||
vzeroupper
|
||
|
||
vmovdqu ($Xip),$Hkey
|
||
vpshufd \$0b01001110,$Hkey,$Hkey # dword swap
|
||
|
||
# <<1 twist
|
||
vpshufd \$0b11111111,$Hkey,$T2 # broadcast uppermost dword
|
||
vpsrlq \$63,$Hkey,$T1
|
||
vpsllq \$1,$Hkey,$Hkey
|
||
vpxor $T3,$T3,$T3 #
|
||
vpcmpgtd $T2,$T3,$T3 # broadcast carry bit
|
||
vpslldq \$8,$T1,$T1
|
||
vpor $T1,$Hkey,$Hkey # H<<=1
|
||
|
||
# magic reduction
|
||
vpand .L0x1c2_polynomial(%rip),$T3,$T3
|
||
vpxor $T3,$Hkey,$Hkey # if(carry) H^=0x1c2_polynomial
|
||
|
||
vpunpckhqdq $Hkey,$Hkey,$HK
|
||
vmovdqa $Hkey,$Xi
|
||
vpxor $Hkey,$HK,$HK
|
||
mov \$4,%r10 # up to H^8
|
||
jmp .Linit_start_avx
|
||
___
|
||
|
||
sub clmul64x64_avx {
|
||
my ($Xhi,$Xi,$Hkey,$HK)=@_;
|
||
|
||
if (!defined($HK)) { $HK = $T2;
|
||
$code.=<<___;
|
||
vpunpckhqdq $Xi,$Xi,$T1
|
||
vpunpckhqdq $Hkey,$Hkey,$T2
|
||
vpxor $Xi,$T1,$T1 #
|
||
vpxor $Hkey,$T2,$T2
|
||
___
|
||
} else {
|
||
$code.=<<___;
|
||
vpunpckhqdq $Xi,$Xi,$T1
|
||
vpxor $Xi,$T1,$T1 #
|
||
___
|
||
}
|
||
$code.=<<___;
|
||
vpclmulqdq \$0x11,$Hkey,$Xi,$Xhi #######
|
||
vpclmulqdq \$0x00,$Hkey,$Xi,$Xi #######
|
||
vpclmulqdq \$0x00,$HK,$T1,$T1 #######
|
||
vpxor $Xi,$Xhi,$T2 #
|
||
vpxor $T2,$T1,$T1 #
|
||
|
||
vpslldq \$8,$T1,$T2 #
|
||
vpsrldq \$8,$T1,$T1
|
||
vpxor $T2,$Xi,$Xi #
|
||
vpxor $T1,$Xhi,$Xhi
|
||
___
|
||
}
|
||
|
||
sub reduction_avx {
|
||
my ($Xhi,$Xi) = @_;
|
||
|
||
$code.=<<___;
|
||
vpsllq \$57,$Xi,$T1 # 1st phase
|
||
vpsllq \$62,$Xi,$T2
|
||
vpxor $T1,$T2,$T2 #
|
||
vpsllq \$63,$Xi,$T1
|
||
vpxor $T1,$T2,$T2 #
|
||
vpslldq \$8,$T2,$T1 #
|
||
vpsrldq \$8,$T2,$T2
|
||
vpxor $T1,$Xi,$Xi #
|
||
vpxor $T2,$Xhi,$Xhi
|
||
|
||
vpsrlq \$1,$Xi,$T2 # 2nd phase
|
||
vpxor $Xi,$Xhi,$Xhi
|
||
vpxor $T2,$Xi,$Xi #
|
||
vpsrlq \$5,$T2,$T2
|
||
vpxor $T2,$Xi,$Xi #
|
||
vpsrlq \$1,$Xi,$Xi #
|
||
vpxor $Xhi,$Xi,$Xi #
|
||
___
|
||
}
|
||
|
||
$code.=<<___;
|
||
.align 32
|
||
.Linit_loop_avx:
|
||
vpalignr \$8,$T1,$T2,$T3 # low part is H.lo^H.hi...
|
||
vmovdqu $T3,-0x10($Htbl) # save Karatsuba "salt"
|
||
___
|
||
&clmul64x64_avx ($Xhi,$Xi,$Hkey,$HK); # calculate H^3,5,7
|
||
&reduction_avx ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
.Linit_start_avx:
|
||
vmovdqa $Xi,$T3
|
||
___
|
||
&clmul64x64_avx ($Xhi,$Xi,$Hkey,$HK); # calculate H^2,4,6,8
|
||
&reduction_avx ($Xhi,$Xi);
|
||
$code.=<<___;
|
||
vpshufd \$0b01001110,$T3,$T1
|
||
vpshufd \$0b01001110,$Xi,$T2
|
||
vpxor $T3,$T1,$T1 # Karatsuba pre-processing
|
||
vmovdqu $T3,0x00($Htbl) # save H^1,3,5,7
|
||
vpxor $Xi,$T2,$T2 # Karatsuba pre-processing
|
||
vmovdqu $Xi,0x10($Htbl) # save H^2,4,6,8
|
||
lea 0x30($Htbl),$Htbl
|
||
sub \$1,%r10
|
||
jnz .Linit_loop_avx
|
||
|
||
vpalignr \$8,$T2,$T1,$T3 # last "salt" is flipped
|
||
vmovdqu $T3,-0x10($Htbl)
|
||
|
||
vzeroupper
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
lea 0x18(%rsp),%rsp
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.seh_endproc
|
||
.cfi_endproc
|
||
.size gcm_init_avx,.-gcm_init_avx
|
||
___
|
||
} else {
|
||
$code.=<<___;
|
||
jmp .L_init_clmul
|
||
.size gcm_init_avx,.-gcm_init_avx
|
||
___
|
||
}
|
||
|
||
$code.=<<___;
|
||
.globl gcm_ghash_avx
|
||
.type gcm_ghash_avx,\@abi-omnipotent
|
||
.align 32
|
||
gcm_ghash_avx:
|
||
.cfi_startproc
|
||
.seh_startproc
|
||
_CET_ENDBR
|
||
___
|
||
if ($avx) {
|
||
my ($Xip,$Htbl,$inp,$len)=@_4args;
|
||
my ($Xlo,$Xhi,$Xmi,
|
||
$Zlo,$Zhi,$Zmi,
|
||
$Hkey,$HK,$T1,$T2,
|
||
$Xi,$Xo,$Tred,$bswap,$Ii,$Ij) = map("%xmm$_",(0..15));
|
||
|
||
$code.=<<___ if ($win64);
|
||
lea -0x88(%rsp),%rax
|
||
lea -0x20(%rax),%rsp
|
||
.seh_stackalloc 0x20+0x88
|
||
movaps %xmm6,-0x20(%rax)
|
||
.seh_savexmm %xmm6, 0x20-0x20
|
||
movaps %xmm7,-0x10(%rax)
|
||
.seh_savexmm %xmm7, 0x20-0x10
|
||
movaps %xmm8,0(%rax)
|
||
.seh_savexmm %xmm8, 0x20+0
|
||
movaps %xmm9,0x10(%rax)
|
||
.seh_savexmm %xmm9, 0x20+0x10
|
||
movaps %xmm10,0x20(%rax)
|
||
.seh_savexmm %xmm10, 0x20+0x20
|
||
movaps %xmm11,0x30(%rax)
|
||
.seh_savexmm %xmm11, 0x20+0x30
|
||
movaps %xmm12,0x40(%rax)
|
||
.seh_savexmm %xmm12, 0x20+0x40
|
||
movaps %xmm13,0x50(%rax)
|
||
.seh_savexmm %xmm13, 0x20+0x50
|
||
movaps %xmm14,0x60(%rax)
|
||
.seh_savexmm %xmm14, 0x20+0x60
|
||
movaps %xmm15,0x70(%rax)
|
||
.seh_savexmm %xmm15, 0x20+0x70
|
||
.seh_endprologue
|
||
___
|
||
$code.=<<___;
|
||
vzeroupper
|
||
|
||
vmovdqu ($Xip),$Xi # load $Xi
|
||
lea .L0x1c2_polynomial(%rip),%r10
|
||
lea 0x40($Htbl),$Htbl # size optimization
|
||
vmovdqu .Lbswap_mask(%rip),$bswap
|
||
vpshufb $bswap,$Xi,$Xi
|
||
cmp \$0x80,$len
|
||
jb .Lshort_avx
|
||
sub \$0x80,$len
|
||
|
||
vmovdqu 0x70($inp),$Ii # I[7]
|
||
vmovdqu 0x00-0x40($Htbl),$Hkey # $Hkey^1
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vmovdqu 0x20-0x40($Htbl),$HK
|
||
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vmovdqu 0x60($inp),$Ij # I[6]
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpxor $Ii,$T2,$T2
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vmovdqu 0x10-0x40($Htbl),$Hkey # $Hkey^2
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vmovdqu 0x50($inp),$Ii # I[5]
|
||
vpclmulqdq \$0x00,$HK,$T2,$Xmi
|
||
vpxor $Ij,$T1,$T1
|
||
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
|
||
vmovdqu 0x30-0x40($Htbl),$Hkey # $Hkey^3
|
||
vpxor $Ii,$T2,$T2
|
||
vmovdqu 0x40($inp),$Ij # I[4]
|
||
vpclmulqdq \$0x10,$HK,$T1,$Zmi
|
||
vmovdqu 0x50-0x40($Htbl),$HK
|
||
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vmovdqu 0x40-0x40($Htbl),$Hkey # $Hkey^4
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T2,$Xmi
|
||
vpxor $Ij,$T1,$T1
|
||
|
||
vmovdqu 0x30($inp),$Ii # I[3]
|
||
vpxor $Zlo,$Xlo,$Xlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
|
||
vpxor $Zhi,$Xhi,$Xhi
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
|
||
vmovdqu 0x60-0x40($Htbl),$Hkey # $Hkey^5
|
||
vpxor $Zmi,$Xmi,$Xmi
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vpclmulqdq \$0x10,$HK,$T1,$Zmi
|
||
vmovdqu 0x80-0x40($Htbl),$HK
|
||
vpxor $Ii,$T2,$T2
|
||
|
||
vmovdqu 0x20($inp),$Ij # I[2]
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vmovdqu 0x70-0x40($Htbl),$Hkey # $Hkey^6
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpclmulqdq \$0x00,$HK,$T2,$Xmi
|
||
vpxor $Ij,$T1,$T1
|
||
|
||
vmovdqu 0x10($inp),$Ii # I[1]
|
||
vpxor $Zlo,$Xlo,$Xlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
|
||
vpxor $Zhi,$Xhi,$Xhi
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
|
||
vmovdqu 0x90-0x40($Htbl),$Hkey # $Hkey^7
|
||
vpxor $Zmi,$Xmi,$Xmi
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vpclmulqdq \$0x10,$HK,$T1,$Zmi
|
||
vmovdqu 0xb0-0x40($Htbl),$HK
|
||
vpxor $Ii,$T2,$T2
|
||
|
||
vmovdqu ($inp),$Ij # I[0]
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vmovdqu 0xa0-0x40($Htbl),$Hkey # $Hkey^8
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x10,$HK,$T2,$Xmi
|
||
|
||
lea 0x80($inp),$inp
|
||
cmp \$0x80,$len
|
||
jb .Ltail_avx
|
||
|
||
vpxor $Xi,$Ij,$Ij # accumulate $Xi
|
||
sub \$0x80,$len
|
||
jmp .Loop8x_avx
|
||
|
||
.align 32
|
||
.Loop8x_avx:
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vmovdqu 0x70($inp),$Ii # I[7]
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpxor $Ij,$T1,$T1
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xi
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xo
|
||
vmovdqu 0x00-0x40($Htbl),$Hkey # $Hkey^1
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Tred
|
||
vmovdqu 0x20-0x40($Htbl),$HK
|
||
vpxor $Ii,$T2,$T2
|
||
|
||
vmovdqu 0x60($inp),$Ij # I[6]
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpxor $Zlo,$Xi,$Xi # collect result
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vxorps $Zhi,$Xo,$Xo
|
||
vmovdqu 0x10-0x40($Htbl),$Hkey # $Hkey^2
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpclmulqdq \$0x00,$HK, $T2,$Xmi
|
||
vpxor $Zmi,$Tred,$Tred
|
||
vxorps $Ij,$T1,$T1
|
||
|
||
vmovdqu 0x50($inp),$Ii # I[5]
|
||
vpxor $Xi,$Tred,$Tred # aggregated Karatsuba post-processing
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
|
||
vpxor $Xo,$Tred,$Tred
|
||
vpslldq \$8,$Tred,$T2
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
|
||
vpsrldq \$8,$Tred,$Tred
|
||
vpxor $T2, $Xi, $Xi
|
||
vmovdqu 0x30-0x40($Htbl),$Hkey # $Hkey^3
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vxorps $Tred,$Xo, $Xo
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vpclmulqdq \$0x10,$HK, $T1,$Zmi
|
||
vmovdqu 0x50-0x40($Htbl),$HK
|
||
vpxor $Ii,$T2,$T2
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
|
||
vmovdqu 0x40($inp),$Ij # I[4]
|
||
vpalignr \$8,$Xi,$Xi,$Tred # 1st phase
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpxor $Zlo,$Xlo,$Xlo
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vmovdqu 0x40-0x40($Htbl),$Hkey # $Hkey^4
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Zhi,$Xhi,$Xhi
|
||
vpclmulqdq \$0x00,$HK, $T2,$Xmi
|
||
vxorps $Ij,$T1,$T1
|
||
vpxor $Zmi,$Xmi,$Xmi
|
||
|
||
vmovdqu 0x30($inp),$Ii # I[3]
|
||
vpclmulqdq \$0x10,(%r10),$Xi,$Xi
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
|
||
vmovdqu 0x60-0x40($Htbl),$Hkey # $Hkey^5
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x10,$HK, $T1,$Zmi
|
||
vmovdqu 0x80-0x40($Htbl),$HK
|
||
vpxor $Ii,$T2,$T2
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
|
||
vmovdqu 0x20($inp),$Ij # I[2]
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpxor $Zlo,$Xlo,$Xlo
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vmovdqu 0x70-0x40($Htbl),$Hkey # $Hkey^6
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Zhi,$Xhi,$Xhi
|
||
vpclmulqdq \$0x00,$HK, $T2,$Xmi
|
||
vpxor $Ij,$T1,$T1
|
||
vpxor $Zmi,$Xmi,$Xmi
|
||
vxorps $Tred,$Xi,$Xi
|
||
|
||
vmovdqu 0x10($inp),$Ii # I[1]
|
||
vpalignr \$8,$Xi,$Xi,$Tred # 2nd phase
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Zlo
|
||
vpshufb $bswap,$Ii,$Ii
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Zhi
|
||
vmovdqu 0x90-0x40($Htbl),$Hkey # $Hkey^7
|
||
vpclmulqdq \$0x10,(%r10),$Xi,$Xi
|
||
vxorps $Xo,$Tred,$Tred
|
||
vpunpckhqdq $Ii,$Ii,$T2
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x10,$HK, $T1,$Zmi
|
||
vmovdqu 0xb0-0x40($Htbl),$HK
|
||
vpxor $Ii,$T2,$T2
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
|
||
vmovdqu ($inp),$Ij # I[0]
|
||
vpclmulqdq \$0x00,$Hkey,$Ii,$Xlo
|
||
vpshufb $bswap,$Ij,$Ij
|
||
vpclmulqdq \$0x11,$Hkey,$Ii,$Xhi
|
||
vmovdqu 0xa0-0x40($Htbl),$Hkey # $Hkey^8
|
||
vpxor $Tred,$Ij,$Ij
|
||
vpclmulqdq \$0x10,$HK, $T2,$Xmi
|
||
vpxor $Xi,$Ij,$Ij # accumulate $Xi
|
||
|
||
lea 0x80($inp),$inp
|
||
sub \$0x80,$len
|
||
jnc .Loop8x_avx
|
||
|
||
add \$0x80,$len
|
||
jmp .Ltail_no_xor_avx
|
||
|
||
.align 32
|
||
.Lshort_avx:
|
||
vmovdqu -0x10($inp,$len),$Ii # very last word
|
||
lea ($inp,$len),$inp
|
||
vmovdqu 0x00-0x40($Htbl),$Hkey # $Hkey^1
|
||
vmovdqu 0x20-0x40($Htbl),$HK
|
||
vpshufb $bswap,$Ii,$Ij
|
||
|
||
vmovdqa $Xlo,$Zlo # subtle way to zero $Zlo,
|
||
vmovdqa $Xhi,$Zhi # $Zhi and
|
||
vmovdqa $Xmi,$Zmi # $Zmi
|
||
sub \$0x10,$len
|
||
jz .Ltail_avx
|
||
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
|
||
vpxor $Ij,$T1,$T1
|
||
vmovdqu -0x20($inp),$Ii
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
|
||
vmovdqu 0x10-0x40($Htbl),$Hkey # $Hkey^2
|
||
vpshufb $bswap,$Ii,$Ij
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Xmi
|
||
vpsrldq \$8,$HK,$HK
|
||
sub \$0x10,$len
|
||
jz .Ltail_avx
|
||
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
|
||
vpxor $Ij,$T1,$T1
|
||
vmovdqu -0x30($inp),$Ii
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
|
||
vmovdqu 0x30-0x40($Htbl),$Hkey # $Hkey^3
|
||
vpshufb $bswap,$Ii,$Ij
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Xmi
|
||
vmovdqu 0x50-0x40($Htbl),$HK
|
||
sub \$0x10,$len
|
||
jz .Ltail_avx
|
||
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
|
||
vpxor $Ij,$T1,$T1
|
||
vmovdqu -0x40($inp),$Ii
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
|
||
vmovdqu 0x40-0x40($Htbl),$Hkey # $Hkey^4
|
||
vpshufb $bswap,$Ii,$Ij
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Xmi
|
||
vpsrldq \$8,$HK,$HK
|
||
sub \$0x10,$len
|
||
jz .Ltail_avx
|
||
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
|
||
vpxor $Ij,$T1,$T1
|
||
vmovdqu -0x50($inp),$Ii
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
|
||
vmovdqu 0x60-0x40($Htbl),$Hkey # $Hkey^5
|
||
vpshufb $bswap,$Ii,$Ij
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Xmi
|
||
vmovdqu 0x80-0x40($Htbl),$HK
|
||
sub \$0x10,$len
|
||
jz .Ltail_avx
|
||
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
|
||
vpxor $Ij,$T1,$T1
|
||
vmovdqu -0x60($inp),$Ii
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
|
||
vmovdqu 0x70-0x40($Htbl),$Hkey # $Hkey^6
|
||
vpshufb $bswap,$Ii,$Ij
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Xmi
|
||
vpsrldq \$8,$HK,$HK
|
||
sub \$0x10,$len
|
||
jz .Ltail_avx
|
||
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
|
||
vpxor $Ij,$T1,$T1
|
||
vmovdqu -0x70($inp),$Ii
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
|
||
vmovdqu 0x90-0x40($Htbl),$Hkey # $Hkey^7
|
||
vpshufb $bswap,$Ii,$Ij
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Xmi
|
||
vmovq 0xb8-0x40($Htbl),$HK
|
||
sub \$0x10,$len
|
||
jmp .Ltail_avx
|
||
|
||
.align 32
|
||
.Ltail_avx:
|
||
vpxor $Xi,$Ij,$Ij # accumulate $Xi
|
||
.Ltail_no_xor_avx:
|
||
vpunpckhqdq $Ij,$Ij,$T1
|
||
vpxor $Xlo,$Zlo,$Zlo
|
||
vpclmulqdq \$0x00,$Hkey,$Ij,$Xlo
|
||
vpxor $Ij,$T1,$T1
|
||
vpxor $Xhi,$Zhi,$Zhi
|
||
vpclmulqdq \$0x11,$Hkey,$Ij,$Xhi
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
vpclmulqdq \$0x00,$HK,$T1,$Xmi
|
||
|
||
vmovdqu (%r10),$Tred
|
||
|
||
vpxor $Xlo,$Zlo,$Xi
|
||
vpxor $Xhi,$Zhi,$Xo
|
||
vpxor $Xmi,$Zmi,$Zmi
|
||
|
||
vpxor $Xi, $Zmi,$Zmi # aggregated Karatsuba post-processing
|
||
vpxor $Xo, $Zmi,$Zmi
|
||
vpslldq \$8, $Zmi,$T2
|
||
vpsrldq \$8, $Zmi,$Zmi
|
||
vpxor $T2, $Xi, $Xi
|
||
vpxor $Zmi,$Xo, $Xo
|
||
|
||
vpclmulqdq \$0x10,$Tred,$Xi,$T2 # 1st phase
|
||
vpalignr \$8,$Xi,$Xi,$Xi
|
||
vpxor $T2,$Xi,$Xi
|
||
|
||
vpclmulqdq \$0x10,$Tred,$Xi,$T2 # 2nd phase
|
||
vpalignr \$8,$Xi,$Xi,$Xi
|
||
vpxor $Xo,$Xi,$Xi
|
||
vpxor $T2,$Xi,$Xi
|
||
|
||
cmp \$0,$len
|
||
jne .Lshort_avx
|
||
|
||
vpshufb $bswap,$Xi,$Xi
|
||
vmovdqu $Xi,($Xip)
|
||
vzeroupper
|
||
___
|
||
$code.=<<___ if ($win64);
|
||
movaps (%rsp),%xmm6
|
||
movaps 0x10(%rsp),%xmm7
|
||
movaps 0x20(%rsp),%xmm8
|
||
movaps 0x30(%rsp),%xmm9
|
||
movaps 0x40(%rsp),%xmm10
|
||
movaps 0x50(%rsp),%xmm11
|
||
movaps 0x60(%rsp),%xmm12
|
||
movaps 0x70(%rsp),%xmm13
|
||
movaps 0x80(%rsp),%xmm14
|
||
movaps 0x90(%rsp),%xmm15
|
||
lea 0xa8(%rsp),%rsp
|
||
___
|
||
$code.=<<___;
|
||
ret
|
||
.cfi_endproc
|
||
.seh_endproc
|
||
.size gcm_ghash_avx,.-gcm_ghash_avx
|
||
___
|
||
} else {
|
||
$code.=<<___;
|
||
jmp .L_ghash_clmul
|
||
.size gcm_ghash_avx,.-gcm_ghash_avx
|
||
___
|
||
}
|
||
|
||
$code.=<<___;
|
||
.section .rodata
|
||
.align 64
|
||
.Lbswap_mask:
|
||
.byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
|
||
.L0x1c2_polynomial:
|
||
.byte 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xc2
|
||
.L7_mask:
|
||
.long 7,0,7,0
|
||
.align 64
|
||
|
||
.asciz "GHASH for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
|
||
.align 64
|
||
.text
|
||
___
|
||
|
||
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
||
|
||
print $code;
|
||
|
||
close STDOUT or die "error closing STDOUT: $!";
|